Toyota recently announced it would allow competitors to use their new fuel cell technology – patent free. This follows a similar move by electric car manufacturer Tesla, when CEO Elon Musk announced last June that

We are thrilled to announce that b2cloud has won the Mobile Design Award for Best Wearable Technology for our work with Telstra. The award recognises our innovative work using Google Glass to help empower the visually

If you’ve ever needed to have an object with multiple delegates you may have created an array and then added each of your delegates to it. This does work but there’s a simpler way which is much easier to implement. Using the NSNotificationCenter you can have objects subscribe to the events/messages they want to know about and get called whenever that ‘event’ takes place. The Cocoa framework uses this as well, and let’s you subscribe to things such as an app entering the background, changing orientations, when it’s running out of memory and when the keyboard is presented or dismissed.